Heater



Lug. 25, 1931. c. B. PAGE `x51 Al.

- HEATER Filed Feb. 25. 1929 4 Sheets-Sheet l Aug. 25,` 1931. c'. B. PAGE ETAI. I 1,820,317*A HEATER 'Filed Feb. 23, 1929 u fx sheets-sneer 2 .Fifi

Aug. z5, 1931. C. BPAGE ET' A1. 1,820,317

Aug. z5, 1931. B. PAGE ET '1,820,317

HEATER Filed Feb. 23. 1929 4 Sheets-Sheet 4 .15 ing` tubes, in Wh'ch a Saftented .Aign 25, 1931 CHARLES Byrnes, or nvalvsroiv, Ann ALBERT e. kALK-Noil eHLAg'fiLLIiioIs; w AssIeIvons, BY MESNE ASSIGNMENTS, ,To THE G..W.nULA;NYvTRUsr, oronrcaqogi 'y ILLINoIs, A COMMON-LAW TRUST yI-IEELA'JTISR.

I Application iledFebruary 23, Y Serial No.. j

The present 'invention relates toii'nproven ments in'heatcrs ory steam generators;r Y

The'fpriinary object' of the present invention resides'in the provision o'aneviT 'and iin- ;6 proved steam.generatorfor heater' which is relatively simple, inexpensive and compact in' kConstruction,.and for aggiven capacity requires arelativelysmallfloor space, which is highly eiiicient e510 which may bereadily; assembled and' disassembled. 4 y y y f More specific objects reside'in the provision of a novel steam generatoror heater, comprising ja'water 'space and tortuous circulatlo'ng flue gas passage 1s provided, -in whichr a Ijcounteriiow kbetween the flue'gases and the medium in the tubes is set up,in Which means isA provided 'for creatinga substantial turbulence ot the Aflue :4.29 gases,y in Wliich'the heated Walls ofthe Water. space are cooled at alltlmes even though the Water level 1s relatively low, andin whichV the tubes may bewlreadily' and quickly removed singly-j f *Further objects andadvantag'es will become vapparent as the descriptionproceeds;v

In theac'ceinpa features of our'invention. y. f Fig'. 2 is a vertical sectional-vievvvl taken alOlg line 2--2 of Fig. 1. 'y L l Fig. 3 is a horizontal sectionallvievv taken along line S-otFig. 2. f Y

" along` line 1 -1 otzFig'. 2. I. f s F v y Fi'gjis a-horizonta'l sectional vievv taken along line 5-5 of l y takenalongline 6*-6o 1.

.sectional vieiv takenfalong`line77fof Fig.'v 1.2' Y While the'iuventionv susceptible ofvarirous modifica-tions and alternative 'constructions, jive" have shown4 inV the drawings and ivill herein describe in Y detail "the preferred embodiment, 'but it is to be understood that 'ive dof not thereby intend tolimit the invention to thespecifcforln diselosed,`but intend toi'coverall modifications and alternative conand safe in operation, l y y y lto Whlcli yit `1s adapted'.

nying drawings, Figure V1l isa. vertical sectionalv vievv taken-along `line 1,.-1 ot Fig. 2 of a generator embodyingfthel v ligl ,4 isa horizontal section lvietvtake'n Fig. 7 is ara-gmentary sectionalvi'ew structions falling vvithin'the spirit and j claims."

generator are' applicable to variousjheating' units, such as aV ,domesticv Water heater, and it is therefore .to be understood that We' intend toy cover the invention broadly 'forally uses `,Referring more specilically tofthedravvfings, the. generator or' heater constituting the exemplary embodiment of the invention may be of anysuitableform,'andin the instance, is generally rectangular in shape and/disposed vertically;l The ygenerator' com# lofthe. invention as expressed in the appeiided prises'lside Walls 10 andV end Walls 12" l and 13 and a bottom `Niva-1111A. These Walls .may haveany suitable form. #In the. present may'bemade ofl any suitabley Inateriahand y secured to the end ,Wallsjflv ,and 13. 'Mountl Y on `the inside ofeach'of thesde vvajlls' 10 and 11 'is alayer of `heat insulating material 15v such as asbestos, prefer-.ablyy inthe forms of blocks. f The .end rWalls .12.a1`1d13 .preferv i ably' are cast, and are 'hollow to,`provide vertical doWnoW Water passages .16. Dispbsedbet'vveenthe lower endsofl thejlend yWalls 12 Vand 13'a`nd und y* lying thevside walls tfllly and farecastings.

1() anpd'llare tvvo"suitableiniuddrllm 17,` Pfefrabl'yfth@ mud; drums? 17 arfsllbstari rectangular `in lateral erosslseetion l Walls-'.12 .and 13by` means" of bolts-18 andtov through suitable connections `19,vvi-th lthe y lower en'ds'of the `Water passages 1 6.n VFeed Water is adapted tobe suppl-iedto they mud drumsy 17Ithrough inlet pipes 20 adapted to (not shown) ythe side Walls 11,0;,and .11, and ycommunie'ateY vbe connected to asuitable source of supply` A ing a water chamber 22. The side walls are removably secured to the head structure 21. The bottom wall 23 of the head structure is formed with a centrally disposed and downwardly opening dome 24 constituting a combustion space or chamber. The head structure 21 is rigidly secured to the end walls 12 and 13 by means of bolts 25, and the interiork thereof communicates at the top and also at opposite sides of the bottom through suitable connections 26 with the passages or legs 16. Preferably, the opposed connections 26 are aligned.

In the top of the chamber 22 is a suitable take-off pipe 27 which preferably is formed with a plurality of small openings 28. The opposite ends of the pipe 27 extend through the upper connections 26 and the side walls 10 and 11. Of the pipe 27, one end is closed by means of a removable plate 29, and the v other end is adapted to be connected to a suitable discharge line (not shown). A safety valve (not shown) may be mounted in the top wall of the head structure 21.

Any desired number of suitable .burners may be provided in the combustion chamber 24, and these may be arranged in any suitable manner. In the present instance, siX burners 32 of standard construction are provided, and three thereof on each side are mounted in integral sleeves 33 in each of the *i with the lower end of the heating chamber side walls of the head structure and open into the sides of the dome 24. lVhile any suitable fuel may be used, preferably the burners 32 are adapted to burn gas, and to this end are connected to a suitable gas manifold 34 leading from a source of fuel (not shown). A suitable pilot light 35 is mounted in one of the end walls 12 and 13 in position to direct a lighting flame past the ends of the op'posed burners 32.

he interior of the generator below the dome 24 constitutes a heating chamber 31. The lower ends of the end walls 12 and 13 are formed with openings 36 communicating 31. Of the openings 36, one is closed by a. removable plate 37 and the other is connected to a suitable stack 38.

Disposed in the heating chamber 31 below the dome 24 are a plurality of heating tubes 39. Preferably, the tubes 39 are fiat and sinuous in shape, and are arranged side by side in closely spaced relation parallel to the end walls 12 and 13. The lower ends of the tubes 39 are connected alternately to the mud drums 17 with which they communicate through ports 40, and are removably secured in position by means of suitable clamp members 41. Likewise, the upper ends of the tubes 39 are connected alternately to opposite sides of the bottom wall 23 of the head struclture 21 to which they are removably secured by means of clamp members 42. Most of the tubes 39 communicate through ports 43 with the bottom of the water chamber 22. Certain of the tubes 39 at spaced intervals are connected to extension pipes 44 extending upwardly into the water chamber 22 and discharging to hollow fittings 45 preferably formed integral with the side walls of the head structure 21. The outer walls of the fittings 45 are apertured, and normally are closed by removable plugs 46 which can be removed to give access thereto. Projecting horizontally from the ttings 45 over the central area of the top wall of the dome 24 are a plurality of discharge members 47 preferably in the form of spouts.

A plurality of transverse battles 48 laterally inclined from the horizontal are disposed between the bends of the tubes 39 and serve to direct the products of combustion from the burners 32 along the course of the tubes, thereby providing a. long tortuous iiue gas passage. The baffles 48 preferably are in the form of plates, the end edges of which are slidably supported in suitable notches 49 in the end walls* 12 and 13. The outer end of the baffles 48 are removably held between a plurality of vertical wall sections 50 disposed closely along the side walls l() and 11. The upper wall sections 50 are inclined inwardly toward the dome 24.

To create turbulence in the the baiiies 48, the baffles directly over the Vtubes 39 are provided at spaced points with a plurality of depending vanes 51. Each vane presents a gradually inclined or curved deliecting surface 52 to the flowing gases.

In operation, feed water is supplied to the mud drums 17, and from there passes upwardly through heating tubes 39. The water or steam-water mixture from the upper ends of the tubes 39 is discharged into ga-s flow along terliow between the medium in the tubes 39 and the flue gases is set up. The van-es 51 create a violent turbulence in the Hue gases in the course of'their passages along the tubes. As a result, a. relatively high eiliciency is obtained. It will be noted that the walls of the combustion chamber 31 are either water cooled or insulated, thereby preventing the loss of heat through radiation from the outer surfaces.

The medium from certain of the heating tubes 39 is discharged directly onto the top wall of the dome 24, thereby serving to keep the latter cool regardless of the water level in the chamber'22. Thus, if the water level were substantially below the top of the dome n wall to prevent ,overheating.

2Q, water still would be spilled onto the top The tubes'39 and the balles 48 canbere-y moved singly and withfa'cility. `This may be accomplished by removing one or yboth of the side walls l0 and 11 tol give access to the interior ofthe chamber 3,1. The baiefs 4,8

1 the entire tube canbe yfreelyfremoved.

. pacity but 'a very small space is required.l

' y heating chamber, a'hollow head structure at y the top of said heating chamber, the. interior f Vof s aidstructure constitutingV a watercham-V f ber,a dome in the bottom wallof said head Vstructure'projecting into said'water cham-r In general, the construction is simple, virlexpensive and compact,^and"for av given ca- We claimas ourinvention:

' l. A heatericomprisingtin combination, vanf'upright heating chamber, a* head strucf ture closing the top of said heating chamber, the interior ofv saidstructure constituting a waterchamber, a part ofthe bottom wall of said head structure being raised to define a ycombustion chamber, aplurality of. burnersy vopening 4to said combustion chamber,y a fluer s gas outlet at'thev lower 'end'- of saidy heating. chamber, a series of he'ating'tubes disposed in said heating chamber and opening into said water chamber, certain of said tubes being ab arranged to discharge onto therais'ed portionY of the bottom wall of saidhead struct-ure and i' ymeansforsupplying waterto said tubes.

' 2. A heater comprising, in combinatiorna 4 heating chamber'having opposed side walls and end walls, two opposedjwalls being hollow to form water legs and extending substantially 'above the-other walls, a Vhollow heardl casing secured between V"said lastivmen- Y tioned wallsy and over 'said otherwallsand communicating withlthe upper ends oflsaid water legs, a'pluralityfof generally verticalv tortuous heatingy tubes disposed in said cham-V ber, thedupper ends of saidV tubes comrnunif leating with saidfheadcasing', means for'sup' "A to the lower ends of said tubes,

Y and aplurality vof baiile'sr extendingI between plying ywater` fr Aheater comprising, in combination, a

y, heating chamber having `opposed sidewalls and end walls, two opposedv lwalls beinghol'-, lowtofform water legs and'extending,suber ystantially above the'gotherwalls, a hollow` v ber', the interior of said structure constituting a water chamber, a part vor' the bottom wall of said `headstructure beingraisedto de# burners opening `tosaid combustion chamber, a iue gas outlet at thelower end ofsaid heating chamber, water legs along two sides of said-heating chamber and communicating with said water chamber, and a series of torj tuou'sheating tubes disposed insaid com`4` said'tubes. p l" kA kheater comprising, in combination, a

rfine a combustion chamber, a vplurality of ber, afplurality of 'burnersin said dome, a

`{iuegasfoutlet openingftrom said heating chamber, 'a series of heating tubes disposed in 'said` heating chamber'. and opening into said water chamber at opposite sides of said the top oiisaid dome', andfmeans for supplying water to'said tubes.

Y6. A heater comprisingyin combination, a y v' 4 2 walls having vertically spaced lateral grooves f heating chamber comprising two parallel dome, certain of said tubes discharging onto in their adjacent surfaces, a plurality of bafV fie kplates slidably mounted ing said grooves,

along the sideedges, aplurality overtical i In testimony whereofwehave hereunto Vaffixed our signatures.

. CHARLES B.y PAGE. 'l f ALBERT head casing secured between said last men- `tioned walls and over saidother 'walls' and communicating with the upper ends of saidl Y Y, water. legs, a'plurality of4 tortuous Vheating tubes vdisposed in said chamber, said tubes communicating with said head casing, means Y for supplyin watertosaid tubes, and a pluf rality of ba es extending `between the bends Y of'said tubes, said bafes being `freely mounted on said hollowwalls for indepermdentre-j 'moval.' 4. A heater comprising, incombinatl'on,

anupright heating chamber, aheadjstruc- 05 ture closing vthe top of said combustion chamr-` o.A Kami;y if" 

